Method and system for laser marking in the volume of...
Method for cutting ornamental transparent gemstones and products
Method for determining a high-reflection cut of a gem,...
Method for producing a highly refractive composite gemstone,...
Method for treating a gem and gem treated with this method
Microinscribed gemstone
Microinscribed gemstone
Mixed cut gemstone
Modified princess cut diamond having hearts and arrows...
Multi-element pleochroic genstomes
Multi-faceted combined cut gemstones
Multi-stone oval gemstone assembly